Omega Aqua Terra Seamaster Aqua Terra 150M Co-Axial 38.5 Red Gold / Diamond / Black / Bracelet

Reference 231.55.39.21.51.001

Omega Seamaster Aqua Terra 150M Co-Axial 38.5 Red Gold / Diamond / Black / Bracelet

About this watch

The Omega Seamaster Aqua Terra 231.55.39.21.51.001 is a masterpiece of luxury watchmaking, boasting a gleaming red gold case and stunning black dial adorned with diamonds. The 38.5mm round case is meticulously crafted to offer a sophisticated look suitable for both casual and formal occasions. Sapphire glass provides unparalleled durability and scratch resistance, ensuring your timepiece remains pristine even with daily wear. This robust chronometer features the Omega caliber 8501 movement, celebrated for its reliability and accuracy, with a power reserve of up to 60 hours and Co-Axial escapement technology reducing friction between parts. With water resistance of 150 meters, this watch is ready for any adventure or formal event, delivering unparalleled luxury and functionality in one sleek package.

Buy Now on Jomashop

This is an affiliate link

Key Features

Omega caliber 8501 movement
Red gold case with gem-set bezel
Sapphire glass for durability
Chronometer certification
Water resistance up to 150 meters

Specifications

Brand

Omega

Family

Aqua Terra

Model

Seamaster Aqua Terra 150M Co-Axial 38.5 Red Gold / Diamond / Black / Bracelet

Reference

231.55.39.21.51.001

Movement

8501

Movement Features

Hours, Minutes, Seconds
Date
Chronometer, Co-Axial Escapement

Case

Red Gold 38.5mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

150

Current Listings

Omega Aqua Terra 8900 41mm Turquoise / Black Ceramic 220.32.41.21.03.001 ( new / 2026 / box and papers )

Omega - 220.32.41.21.03.001 · $6,995

This Omega Aqua Terra 8900 features a 41mm stainless steel and black ceramic case with a turquoise dial, showcasing the brand's Master Chronometer movement.

Condition: Brand new
Movement: Master Chronometer Movement
Case material: Stainless Steel / Black Ceramic
Size: 41mm diameter

Posted at

Apr 9, 2026, 2:08 PM

Active

View listing on r/WatchExchange

BNIB Omega Seamaster Aqua Terra Black Lacquer 41mm Full Kit - REF# 220.10.41.21.01.0 $6,449 + label

Omega - 220.10.41.21.01.0 · $6,449

This Omega Seamaster Aqua Terra features a black lacquer dial and is powered by OMEGA's Co-Axial Master Chronometer calibre 8900, certified at the industry's highest standard.

Condition: Brand new, fully stickered, unworn
Calibre: Co-Axial Master Chronometer 8900
Case Material: Black Lacquer Dial (Blackquaterra)

Posted at

Apr 9, 2026, 11:45 AM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra 41mm

Omega - 220.10.41.21.03.001 · $3,900

A 41mm Aqua Terra in teakwood blue with a stainless steel bracelet and OEM blue rubber strap, serviced within the last 2 months.

Condition: Excellent, recently serviced
Case size: 41mm
Bracelet/strap type: blue rubber strap, OEM
Band closure: deployant clasp

Posted at

Apr 9, 2026, 10:23 AM

Active

View listing on r/WatchExchange

2023 OMEGA Aqua Terra Worldtimer GMT Titanium - 220.92.43.22.99.001 - Full Set Extra OEM NATO Mint

OMEGA - 220.92.43.22.99.001 · $9,250

The Aqua Terra Worldtimer is a grade 2 titanium timepiece with a matte finish, black ceramic bezel, and laser etched dial featuring continents and indices. It's mounted on a black rubber integrated strap.

Condition: Very excellent pre-owned condition
Case size: 43mm diameter
Water resistance: 150m depth rating
Movement: Co-Axial Master Chronometer Calibre 8938 (METAS certified)

Posted at

Apr 8, 2026, 7:32 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra Worldtimer “Summer Blue”

Omega - 220.10.43.22.03.002 · $7,999

This Omega Seamaster Aqua Terra Worldtimer features a stunning 'Summer Blue' dial with laser-ablated continents, showcasing one of the most visually impressive modern Omega pieces.

Condition: Brand new old stock and unworn
Case size: 43mm
Material: stainless steel
Movement: Omega Co-Axial Master Chronometer Caliber 8938

Posted at

Apr 8, 2026, 6:39 PM

Active

View listing on r/WatchExchange

Omega - 2502.34.00 Seamaster Aqua Terra 150M Co-Axial 42.2 Stainless Steel

Omega - 2502.34.00 · $4,500

The Omega Seamaster Aqua Terra 150M Co-Axial features a 42.2mm stainless steel case and pristine white dial, exemplifying Omega's commitment to robust performance and elegant design.

Condition: Very good
Case size: 41MM diameter
Bezel material: Stainless
Movement type: Omega caliber 2500 Co-Axial Escapement Chronometer

Posted at

Apr 8, 2026, 5:56 PM

Active

View listing on r/WatchExchange

2023 Omega Seamaster Aqua Terra Skyfall Blue 231.10.42.21.03.003 41.5mm Full Set - $4,995

Omega - 231.10.42.21.03.003 · $4,995

Up for sale is a Omega Seamaster Aqua Terra Skyfall Blue, a 2023 model featuring a 41.5mm diameter case.

Condition: Excellent condition with minimal signs of wear
Case Size: 41.5mm diameter
Movement Testing: tested on a timegrapher

Posted at

Apr 8, 2026, 12:55 PM

Active

View listing on r/WatchExchange

2024 Omega Seamaster Aqua Terra Terracotta Shades 38m Red Dial on Bracelet 220.10.38.20.13.003 B+P

Omega - 220.10.38.20.13.003 · $5,600

The Omega Seamaster Aqua Terra Shades 220.10.38.20.13.003 features a rich red terracotta dial on a 38mm stainless steel case, with a Master Chronometer movement delivering accuracy and reliability.

Condition: Mint condition, almost no signs of wear
Case Diameter: 38mm
Bezel Material: Stainless Steel
Dial Color: Red

Posted at

Apr 8, 2026, 12:47 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra 231.10.39.21.01.001 Black Teak 38.5mm - $3,290

Omega - 231.10.39.21.01.001 · $3,290

Up for sale is my great condition Omega Seamaster Aqua Terra 231.10.39.21.01.001 with a steel case on original Omega steel bracelet.

Condition: very good for its age, minimal marks/hairlines on case, caseback, and bracelet
Movement: Omega Calibre 8500
Case size: 38.5mm diameter
Bracelet type: original Omega steel bracelet

Posted at

Apr 7, 2026, 9:27 PM

Active

View listing on r/WatchExchange